I'm not 100% sure on this, but I thought an overdraft classed as unsecured debt, even if you dont use it? So it could mean if you want to apply for credit they may take it into acount when credit scoring you. For instance if you had a 5 grand overdraft you didnt normally use, you still have the potential to be 5 grand in debt (along with the associated charges) and any lender would need to consider that in terms of completing an affordability assessment on you.
I am pretty certain they wanted to know what my overdraft and credit limits on credit cards were when we applied for our mortgage.
I'm probably completely wrong though! Hopefully someone will drop in and clarify either way
Cheers
Buff
I have a £6700 unused overdraft left over from the days I used to be a student over 12 years ago. It has never worked against me since I have graduated for a mortgage or car loans etc.